Properties of the Number 87973

Eighty-Seven Thousand Nine Hundred Seventy-Three

Basics

Value: 87972 → 87973 → 87974

Parity: odd

Prime: Yes

Previous Prime: 87961

Next Prime: 87977

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 87973

Divisors: 1, 87973

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011110100101

Octal: 253645

Duodecimal: 42AB1

Hexadecimal: 157a5

Square: 7739248729

Square Root: 296.60242750186654

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of not necessarily connected 4-regular simple graphs on n vertices with girth exactly 3. A185143

Numerators of the partial sums of the reciprocals of the sum of bi-unitary divisors function (A188999). A379615

Irregular triangle E(n,g) counting not necessarily connected 4-regular simple graphs on n vertices with girth exactly g. A185140

Zeroless numbers k such that k - (sum of digits of k) and k - (product of digits of k) contain the same distinct digits as k. A248717

Primes p such that p¹⁰ - 1 has 256 divisors. A342066

Triangular array E(n,k) counting, not necessarily connected, k-regular simple graphs on n vertices with girth exactly 3. A185643

Maximal term in Collatz-iteration started at 3ⁿ. A87973